The SW Motech crash bars use the same mounting system as the OEM at several points. The OEM gives absolutely zero protection for the radiator and tank. If you are repairing bikes with bent crash bars then they did their job. That kinda goes without saying. If the engine cases were cracked by the crash bars then the same would have happened with the OEM and maybe worse due to other aftermarket bars displacing the force over a greater area.

I know of the incident hes talking about it wasn't the SW Mototech crash bars but the Hepco and Becker bars.